Winter operation In the "Heater and boiler" switch setting in winter operation, the boiler is
already switched on.
Summer operation In summer operation the water can be heated to 40 °C or 60 °C.
Switching on:
Open the regulator tap on the gas bottle and the gas isolator tap "Heater/
boiler".
Set the rotary switch (Fig. 86,2) on the operating unit (Fig. 86) to "Summer
operation" (Fig. 86,1).
The yellow indicator lamp (Fig. 86,4) lights up during the heating up period.
When the set water temperature is reached, the period of heating up is fin-
ished and the yellow indicator lamp fades.
Switching off:
Set the rotary switch (Fig. 86,2) on the operating unit (Fig. 86) to " ".
Close the gas isolator tap "Heater/Boiler" and the main regulator tap on the
gas bottle.
Filling/emptying the boiler The boiler can be supplied with water from the water tank.
Filling the boiler with water:
Switch on 12 V power supply on the panel.
Close the safety/drainage valve. To so so turn the knob (Fig. 87,1) cross-
wise to the safety/drainage valve and press in the push button (Fig. 87,2).
Set all the water taps to "Hot" and open them. The water pump is turned
on. The hot water pipes are filled with water.
Keep the taps open until the water flowing out of the taps has no bubbles
in it. This is the only way to ensure that the boiler is full of water.
Close all water taps.
Emptying the boiler:
Set the rotary switch (Fig. 86,2) on the operating unit (Fig. 86) to " ".
Open the safety/drainage valve. To so so turn the knob (Fig. 87,1) parallel
to the safety/drainage valve. The push button (Fig. 87,2) trips. The boiler is
drained to the outside by the safety/drainage valve.
Check whether the water has been drained completely from the boiler
(approx. 10 litres).
Fig. 87 Safety/drainage valve of the
boiler
Z Further information can be obtained from the separate instruction manual
"Boiler".
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